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Old 03-22-2017, 10:26 PM   #1
tunsz555
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Default Dance Dance Convolution : Input raw audio - output simfiles

A recent paper named Dance Dance Convolution is out. You might be interested on reading the whole thing here if you like neural nets : https://arxiv.org/pdf/1703.06891.pdf.



But for short, neural nets is a thing which can decide based on what it had learned. (We designed the net and let it learn, but we have no idea what happens inside that it is able to deduce correct answer given a new input.)

This NN will automatically detects where to put steps (analyzing "onset" in an audio file) on an unseen audio. (Shazam for example, could detect what song it is because it already learned about the song, that's not unseen)

The learning material is 133 ITG files with full difficulties, 8 different note charters.

Then it will decide which note to put at that point in time. The resulting simfile is in this video.
https://www.youtube.com/watch?v=yUc3O237p9M


Luckily it is not that intelligent to do crossovers or gallops XD
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Old 03-22-2017, 10:34 PM   #2
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Default Re: Dance Dance Convolution : Input raw audio - output simfiles

This
Might be very sick


In all honesty this is probably something we've all thought about but never really taken into serious consideration because of the sheer complexity in making such a program. But it's here now!
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Old 03-22-2017, 10:40 PM   #3
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Default Re: Dance Dance Convolution : Input raw audio - output simfiles

From the website:
"The network that predicts step timings has no concept of rhythm or tempo. It simply answers the following question 100 times a second: should there be a step here? We map these to step charts by creating measures with 192 steps at 125BPM. We will release a script soon allowing you to manually set the tempo/offset of a chart to clean things up a little. For now, turn off colored note skins to avoid confusion."

It looks like the remnants of FFR's antiquated system have washed out on the shores of San Diego.
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Old 03-22-2017, 11:00 PM   #4
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Default Re: Dance Dance Convolution : Input raw audio - output simfiles

this is neat kind of reminds me of dancing monkey
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Old 03-22-2017, 11:08 PM   #5
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Default Re: Dance Dance Convolution : Input raw audio - output simfiles

my adviser sent this to me for lab research today lmao

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Old 03-23-2017, 02:42 AM   #6
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Default Re: Dance Dance Convolution : Input raw audio - output simfiles

Looks like there is a working demo of Dance Dance Convolution out there!!

http://deepx.ucsd.edu/ddc

Last edited by FightABunny; 03-23-2017 at 02:55 AM..
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Old 03-23-2017, 05:17 AM   #7
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Default Re: Dance Dance Convolution : Input raw audio - output simfiles

I feel like this could be massively improved just by allowing the user to input the song's BPM if it is known, rather than try to shove the song through 125BPM which would inevitably cause nearly every arrow to be a few ms offbeat
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Old 03-23-2017, 07:38 AM   #8
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this is actually a fairly neat and well written paper and if i cared more about pad i'd prolly take the time to scrutinize it further

just want to point out that this paper defines an increase in difficulty as a successive increase in notes per second relating to a successive decrease in sound audibility

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after throwing ghost love score at it a few times i am more impressed by the paper than the results

though i supposed it was designed for stepmanias musics and not, you know, real music

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ok you know what i bet i could make a reasonably playable dump file by throwing a song at it 10 times and overlapping the results

Last edited by Velocity; 03-23-2017 at 09:04 AM..
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Old 03-23-2017, 08:08 AM   #9
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Old 03-23-2017, 01:37 PM   #10
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Default Re: Dance Dance Convolution : Input raw audio - output simfiles

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Originally Posted by contrapatior View Post
true art
Beautiful :')
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